Description
atop through 2.11.0 allows local users to cause a denial of service (e.g., assertion failure and application exit) or possibly have unspecified other impact by running certain types of unprivileged processes while a different user runs atop.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| atop project | atop | ≤ 2.11.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | atop | 2.11.1-1 | — |
| Debian 13 | atop | 2.11.1-1 | — |
| Debian 12 | atop | 2.8.1-1+deb12u1 | DSA-5892-1 |
| Debian 11 | atop | 2.6.0-2+deb11u1 | DLA-4117-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | atop | No fix yet | — |
| Ubuntu 26.04 LTS | atop | No fix yet | — |
| Ubuntu 25.10 | atop | No fix yet | — |
| Ubuntu 24.04 LTS | atop | No fix yet | — |
| Ubuntu 22.04 LTS | atop | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | atop | No fix yet | — |
| Ubuntu 18.04 LTS | atop | No fix yet | — |
| Ubuntu 16.04 LTS | atop | No fix yet | — |
| Ubuntu 14.04 LTS | atop | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | atop | 2.11.1-1.1 | openSUSE-SU-2025:14945-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | atop | 2.11.1-r0 | — |
| Alpine v3.23 | atop | 2.11.1-r0 | — |
| Alpine v3.22 | atop | 2.11.1-r0 | — |
| Alpine v3.21 | atop | 2.11.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | atop | 2.12.1-1.amzn2023 | ALAS2023-2026-1691 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | atop | 2.9.0-2 | — |
| Azure Linux 2 (CBL-Mariner) | atop | 2.6.0-10 | — |
Advisories 4
- ALAS2023-2026-1691 Low: atop security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 11, 2026
- DSA-5892-1 atop - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-4117-1 atop - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2025:14945-1 atop-2.11.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026